WORLD #1 ON

Ilie Năstase (1973) → Jannik Sinner (2026) — 18 different #1s on October 13

Date	Player	Week
October 13, 2026	Jannik Sinner	27
October 13, 2025	Carlos Alcaraz	6
October 13, 2024	Jannik Sinner	18
October 13, 2023	Novak Djokovic	5
October 13, 2022	Carlos Alcaraz	5
October 13, 2021	Novak Djokovic	60
October 13, 2020	Novak Djokovic	8
October 13, 2019	Novak Djokovic	49
October 13, 2018	Rafael Nadal	16
October 13, 2017	Rafael Nadal	8
October 13, 2016	Novak Djokovic	119
October 13, 2015	Novak Djokovic	67
October 13, 2014	Novak Djokovic	15
October 13, 2013	Rafael Nadal	1
October 13, 2012	Roger Federer	14
October 13, 2011	Novak Djokovic	15
October 13, 2010	Rafael Nadal	19
October 13, 2009	Roger Federer	15
October 13, 2008	Rafael Nadal	9
October 13, 2007	Roger Federer	193
October 13, 2006	Roger Federer	141
October 13, 2005	Roger Federer	89
October 13, 2004	Roger Federer	37
October 13, 2003	Juan Carlos Ferrero	6
October 13, 2002	Lleyton Hewitt	47
October 13, 2001	Gustavo Kuerten	25
October 13, 2000	Pete Sampras	5
October 13, 1999	Andre Agassi	5
October 13, 1998	Pete Sampras	8
October 13, 1997	Pete Sampras	79
October 13, 1996	Pete Sampras	26
October 13, 1995	Andre Agassi	27
October 13, 1994	Pete Sampras	57
October 13, 1993	Pete Sampras	5
October 13, 1992	Jim Courier	2
October 13, 1991	Stefan Edberg	5
October 13, 1990	Stefan Edberg	9
October 13, 1989	Ivan Lendl	37
October 13, 1988	Mats Wilander	5
October 13, 1987	Ivan Lendl	110
October 13, 1986	Ivan Lendl	58
October 13, 1985	Ivan Lendl	5
October 13, 1984	John McEnroe	9
October 13, 1983	John McEnroe	15
October 13, 1982	Jimmy Connors	5
October 13, 1981	John McEnroe	11
October 13, 1980	Björn Borg	9
October 13, 1979	Björn Borg	14
October 13, 1978	Jimmy Connors	59
October 13, 1977	Jimmy Connors	7
October 13, 1976	Jimmy Connors	116
October 13, 1975	Jimmy Connors	64
October 13, 1974	Jimmy Connors	11
October 13, 1973	Ilie Năstase	8

Date	Player	Week
October 13, 2026	Elena Rybakina	5
October 13, 2025	Aryna Sabalenka	52
October 13, 2024	Iga Świątek	49
October 13, 2023	Aryna Sabalenka	5
October 13, 2022	Iga Świątek	28
October 13, 2021	Ashleigh Barty	62
October 13, 2020	Ashleigh Barty	10
October 13, 2019	Ashleigh Barty	5
October 13, 2018	Simona Halep	33
October 13, 2017	Simona Halep	1
October 13, 2016	Angelique Kerber	5
October 13, 2015	Serena Williams	139
October 13, 2014	Serena Williams	87
October 13, 2013	Serena Williams	34
October 13, 2012	Victoria Azarenka	14
October 13, 2011	Caroline Wozniacki	34
October 13, 2010	Caroline Wozniacki	1
October 13, 2009	Serena Williams	1
October 13, 2008	Jelena Janković	2
October 13, 2007	Justine Henin	30
October 13, 2006	Amélie Mauresmo	30
October 13, 2005	Maria Sharapova	5
October 13, 2004	Amélie Mauresmo	5
October 13, 2003	Kim Clijsters	10
October 13, 2002	Serena Williams	14
October 13, 2001	Martina Hingis	73
October 13, 2000	Martina Hingis	21
October 13, 1999	Martina Hingis	10
October 13, 1998	Lindsay Davenport	1
October 13, 1997	Martina Hingis	29
October 13, 1996	Steffi Graf & Monica Selesco-#1	70
October 13, 1995	Steffi Graf & Monica Selesco-#1	18
October 13, 1994	Steffi Graf	71
October 13, 1993	Steffi Graf	19
October 13, 1992	Monica Seles	58
October 13, 1991	Monica Seles	5
October 13, 1990	Steffi Graf	165
October 13, 1989	Steffi Graf	113
October 13, 1988	Steffi Graf	61
October 13, 1987	Steffi Graf	9
October 13, 1986	Martina Navratilova	47
October 13, 1985	Chris Evert	18
October 13, 1984	Martina Navratilova	122
October 13, 1983	Martina Navratilova	70
October 13, 1982	Martina Navratilova	18
October 13, 1981	Chris Evert	48
October 13, 1980	Tracy Austin	15
October 13, 1979	Martina Navratilova	5
October 13, 1978	Martina Navratilova	14
October 13, 1977	Chris Evert	75
October 13, 1976	Chris Evert	23

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